Improvement in combined tools



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Letters Patent No. 108,377, dated October 18, 1870.

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IMPROVEMENT IN COMBINED TOOLS.

The Schedule referred to in these Letters Patent and making part of the same.

T 0 all whom it may concern Ben it known that I, GEORGE H. MILLER, of Dyersburg, in the county ot' Dyer and State of Tennessee, have invented a new and useful Improvement in Combined Tool; and I do hereby dcclare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the 'accompanying drawing forming part of this specification, in whiche Figure l is a perspective view of my improved tool, adj usted as a simple screw-driver.

Figure 2 is a detail sectional View of the same, illustrating the use of the screw-holding device.

Figure 3 is a detail sectional view of the same, adjusted as a wrench.

Figure 4 is a detail Yfront view of the forward end of the screw-driver.

Figure 5 are detail views of the wrench-attachments.

Figure 6 are detail viewsLof the screw-holding attachment.

Figure 7 ment Similar letters of reference indicate corresponding parts. v

My invention has for its object to furnish animproved tool, formed by the combination of various attachments with the shank of a screw-driver to adapt it for use for various purposes; and

It consists in the combination of the screw-driver shank and its various attachments, as hereinafter more fnllydescribed. l

A is the handle of the screw-driver, which I prefer to make hollow, to furnish a convenient receptacle for containing the screw-driver points and other small articles.

To the lower end of the handle A is attached the shank B of the screw-driver, uponione side of the forward end of which shank is formed a projection, C, designed to serve as a hammer-head,y for driving tacks and other small nails.

'D are small plates or pieces of steel, which serve as points for the screw-driver, and which are inserted in a slat, 711, formed in the forward end of the shank B.

The screw-driver points D have each a dovetailed rib formed upon one side, which fits into a dovetailedV groove, b2, formed in the end ofthe shank B.

By this construction the pointl) will be securely held, and will, at the saine time, be easily detachable, so that it may be conveniently replaced by a is a detail view of the boringattachlarger or smaller one, according to the size of the screws to be operated upon.

The side of the slotted end of the shank B, opposite the hammer-head C, is cut olf to form a shoulder, as shown in figs. 1, 2, 3, and 4.

In the side of the shank B, at its forward end, is formed a slot, b3, which is made wider at its lower end, as shown in fig. 4, so as to hold the stems of the devices placed in it, and prevent them from being drawn out by its dovetail form.

The bottom of the slot b3 is made flush with the face or side of the screw-driver points D, as shown in figs. 2 and 3.

E is the clamp for holding thescrews while starting them in, said clamp having curved notches formed in its face to fit upon different sized screwheads, as indicated in dotted lines in iig. 2. In using the clamp E the point D is inserted in the slot of the screw-head, the clamp E is then adjusted with its proper notch upon the side of the screw-head.

The stem of said clamp is placed in the dovetailed groove 1i, and the ring F, upon the shank B, is slipped up, as shown in hg. 2, securing it in place,

clamping the screw-head, and enabling it t-o be4 con-.

veniently started.

In the forwardend of the clamp E is formed a notch, e', of such a size and shape as to enable the tool, -whcn the said clamp is secured to the shank B, to be used as a tack-claw G is a device, the stem ot' which fits into the groove b3 of the shank B, so that it may be secured by the slide F.

The upper end of the piece G is formed as shown in figs. 3 and 5, so as, when the said piece is secured to the shank B, to serve as olie jaw of a wrench, the screw-driver point 1) serving as the other jaw.

To enable thc wrench to be adjusted to the size of the nut to be turncdfan inclined tenon is formed upon the inner side of the lower end part of its stem, to enter an inclined groove in the lower part of the groove b, so that thc outer end of said piece G may be inclined outward.

To enable it to be secured in this position an inclined notch is formed in the inner surface of the sliding ring, so that, by sliding the said ring up more or less, according to the inclination of the said piece G, said piece may be firmly secured iu place. Y

H is au awl, designed for forming holes to receive the screws, and which haswvings I formed upon its side at suitable distance from its point, to serve as countersinks for enlarging the outer ends of the holes shank B, constructed as described, hmnmenhead C, to receive the screw-heads. detachable screw-driver' point D, screw-holder E,

,The stem of the :mi H is t'ted into the groove piece G, and awl H, said parts being constructed b3, and is secured by the slide ring F, in the manner und operating substantially as herein shown and hereinbeforedescribed. described, and for the purpose set forth.

Having thus described my invention, GEORGE H. MILLR.

I claim as new and desire to securev byLetters Witnesses: f) Patent J. S. RloHMmsox,

An improved tool, consisting of the handle A, J. O. PINNEB. 

